Pic2Mag vs MARVLS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Pic2Mag
Visualize magnetic and electric fields by drawing magnets or charges. This educational tool helps students understand physics concepts by displaying field lines and voltage potentials. It offers a free, ad-free learning experience for iOS devices.
- Draw magnets to visualize magnetic fields
- Draw charges to visualize electric fields
- Magnetostatic and Electrostatic modes
- Field line and voltage potential plotting
- Caches results for faster processing
- Ad-free learning experience
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The user draws the magnets and the Pic2Mag program draws the magnetic fields. The Field Calculator program now has a Magnetostatic mode, and an Electrostatic mode to plot either magnetic fields or electric fields. The program designed to help students learn Magnetic fields and Electric fields. You can draw magnets and look at the magnetic field, or you can draw electric charges and look at the electric voltage field. The best free magnetic science program you can download! No advertisements, it's just all app. The app can process most images in just a few minutes. The app caches it's results so the more that you use it, the faster the program processes images. Red pixels represent magnets with a North pole surface facing the observer, and Blue pixels represent magnets with a South pole surface facing the observer. Pink pixels represent positive electric charges, and Dark Purple pixels represent negative electric charges
MARVLS
Explore plasma physics concepts with interactive augmented reality models. Visualize and manipulate these models using your phone and a downloadable Merge Cube. Navigate through various topics and bring complex scientific ideas to life.
- Augmented reality models
- Plasma physics concepts
- Merge Cube integration
- Interactive visualization
- Topic navigation
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View augmented reality models of plasma physics concepts through your phone. You'll need a Merge Cube (downloadable from the internet). Click on different button to navigate to different topics. Tap the camera icon and point your camera towards the Merge Cube to visualize and interact with our MARVLS.
Screenshots
Verdict
The clearest difference is update cadence: MARVLS at every 5 months against Pic2Mag's every 31 months. Pic2Mag's advantage is device support (3 vs 1) and iOS requirement (8.0 vs 18). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 5.0 for Pic2Mag against 5.0 for MARVLS. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
Pic2Mag ships an update every 31 months, MARVLS every 5 months. The most recent releases landed on July 5, 2026 and June 1, 2026 respectively.
| Parameter | Pic2Mag | MARVLS |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 31 months | Every 5 months — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 8.0 — better | 18 |
| Further details — not scored | ||
| Size | 108 MB | 210 MB |
| Age rating | 4+ | 4+ |
| Developer | Michael Snyder | Michele McColgan |
Customer experience
Pic2Mag
MARVLS
In-app purchases
Pic2Mag
No in-app purchases
MARVLS
No in-app purchases
